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Brand voice AI

Create consistent brand audio for ads, explainers, courses, product videos, and support content.

One designed voice can ship across campaigns, docs, and customer touchpoints.

Design a voice See pricing

How it works

  1. 1

    Design the brand voice

    Prompt the voice's tone, age, energy, and delivery style.

  2. 2

    Use it everywhere

    Render long-form Cast audio or realtime Speak clips from the same account.

  3. 3

    Keep economics simple

    Voice creation is free; synthesis is priced by generated audio minutes.

Built on

CastEmotional long-form TTS for podcasts, narration, and audiobooks.SpeakText-to-speech that starts in milliseconds.

Stop paying for stitched voice AI.

Start with a free key, 10,000 Hear minutes every month, and $50 in credits. Test the same OpenAI-compatible stack you can take to production with Omni, Agents, and Trace.

Get a free key Model your spend

No credit card - OpenAI-compatible - cancel anytime